Base | Representation |
---|---|
bin | 10011001100011… |
… | …01001011000100 |
3 | 102012222011201010 |
4 | 21212031023010 |
5 | 312204312442 |
6 | 23551002220 |
7 | 3663364665 |
oct | 1146151304 |
9 | 365864633 |
10 | 161010372 |
11 | 82982526 |
12 | 45b09370 |
13 | 27485613 |
14 | 1755336c |
15 | e206b9c |
hex | 998d2c4 |
161010372 has 48 divisors (see below), whose sum is σ = 383281920. Its totient is φ = 52596768.
The previous prime is 161010341. The next prime is 161010379. The reversal of 161010372 is 273010161.
161010372 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (161010379) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137863 + ... + 139025.
It is an arithmetic number, because the mean of its divisors is an integer number (7985040).
Almost surely, 2161010372 is an apocalyptic number.
161010372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
161010372 is an abundant number, since it is smaller than the sum of its proper divisors (222271548).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
161010372 is a wasteful number, since it uses less digits than its factorization.
161010372 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1392 (or 1390 counting only the distinct ones).
The product of its (nonzero) digits is 252, while the sum is 21.
The square root of 161010372 is about 12688.9862479238. The cubic root of 161010372 is about 544.0238644736.
The spelling of 161010372 in words is "one hundred sixty-one million, ten thousand, three hundred seventy-two".
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